<template>
  <div class="song-list">
    <ul>
      <li @click="selectItem(song, index)" class="item" v-for="(song, index) in songs" :key="index">
        <div class="rank" v-show="rank">
          <span :class="getRankCls(index)" v-text="getRankText(index)"></span>
        </div>
        <div class="content">
          <h2 class="name">{{song.name}}</h2>
          <p class="desc">{{getDesc(song)}}</p>
        </div>
      </li>
    </ul>
  </div>
</template>

<script>
  export default {
    name: 'song-list',
    props: {
      songs: {
        type: Array,
        default () {
          return []
        }
      },
        rank: {
          type: Boolean,
          default: false
          }
    },
    methods: {
      selectItem (item, index) {
        this.$emit('select', item, index)
      },
      getDesc (song) {
        return `${song.singer}·${song.album}`
      },
      getRankCls (index) {
        if (index <= 2) {
          return `icon icon${index}`
        } else {
          return 'text'
        }
      },
      getRankText (index) {
        if (index > 2) {
          return index + 1
        }
      }
    }
  }
</script>

<style lang="stylus" scoped>
  @import "~assets/stylus/variable"
  @import "~assets/stylus/mixin"
  .song-list
    .item
      display: flex
      align-items: center
      box-sizing: border-box
      height: 64px
      font-size: $font-size-medium

      .rank
        flex: 0 0 25px
        width: 25px
        margin-right: 30px
        text-align: center

        .icon
          display: inline-block
          width: 25px
          height: 24px
          background-size: 25px 24px

          &.icon0
            bg-image('first')

          &.icon1
            bg-image('second')

          &.icon2
            bg-image('third')

        .text
          color: $color-theme
          font-size: $font-size-large

      .content
        flex: 1
        line-height: 20px
        overflow: hidden

        .name
          no-wrap()
          color: $color-text

        .desc
          no-wrap()
          margin-top: 4px
          color: $color-text-d
</style>
